Patent RU-94024872-A (RU)
Inventor: KOTEL NIKOV V E
IPC: G01S7/40
Filed: 1994-07-11
Abstract: FIELD: navigation, machines, standardization and metrology, oceanology and meteorology. SUBSTANCE: invention refers to field of technical means of navigation and control over sea and ocean ships of large and medium dimensions and their operation. Method is aimed at generation of objective and precise measurement, navigational, technical, economic and business information which is components of standard base of navigational precision during navigation and operation of ships created and experimentally run-in during practical voyages and is one of decisive conditions of commercial success at world's market in the field of navigational management of quality services in shipping designed for navigation companies, navigation, instrument-making and ship-building firms for effective and safe control, quality and reliability of operation of sea/oceanic ships of large and medium dimensions, Proposed method includes complete group measurement and information basis of run-in innovation: "standard" conditions and means for measurement of fundamental and other physical of values of operational characteristics and navigational parameters of ship movement, precision and reliability of their measurement and practical usage at ships displaying wide range of indications of physical constants of values consisting in approval and acceptance and any other speed tests to determine standard values of speed, covered distance and other operational characteristics and navigational parameters of movement of ship "relative to water" conducted at voyages at sea when there is no danger to ship without ship being brought out of operation without losses in operational period and running time for check of measurements without any additional equipment for actual weight displacement conditions of ship at steady-state operational and any maneuverable (excluding transient) speed loading modes of operation of ship's propulsive complex (engine) which are characteristic of conditions of their operation by actual measurement information. Primary working standard of numerical value of fundamental constant of navigational magnitude of universal meter of speed and covered distance (translatory motion of ship per one revolution of propeller: mile/rev; meter/rev) Sn is determined experimentally in recommended "natural calm and deep-water basins" while ship runs on constant heading. By taking readings of ship orientation system at moments of time between precise observations by data from ship navigation system or radar of start and finish of each of two-three measured sections of ship routes in given basin and as quotient of number of covered miles S by summary number of revolutions n of propeller one obtains working standard of fundamental constant of value of speed meter and distance Sn (conjugated to ship orientation system and compatible with ship navigation system). According to product of it by summary number of revolutions registered by ship orientation system (during time of passage of any section of ship route during any time interval - minutes, hours, watches, etc at any speed of movement and under any conditions at various stages of sailing) speed and covered distance are determined and separate performance of reckoning of ship route "relative to water" and "relative to bottom" are conducted by actual measurement information (directly tied up to actual way of ship, navigational situation, navigational conditions and character of dependence on time) with correction of reckoning of route and position at each watch by results of observations, by data from gyrocompass, ship navigation system and ship orientation system, by separately generated from them information on covered distance and speed of forward running of ship with standard and moderate precision within working range of measurements and check to 0.1 knot (+/- 0.1 mile). EFFECT: generation of objective and precise measurement, navigational, technical, economic and business information.